This image shows the welcome page for the query servlet example. It says the following:

The query is

SELECT ename, empno FROM emp WHERE ename LIKE xxx

Specify the WHERE clause xxx parameter.

Enclose entry in single-quotes; use % for wildcard. Search is case-sensitive.

Example: 'S%' (for all names starting with 'S').

This text is followed by a field to enter the xxx parameter, then a Submit Query button you click to submit the query.

(End of description.)